<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li
          class="search-item border-bottom"
          v-for="item of list"
          :key="item.id"
          @click="handleCityClick(item.name)"
        >
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="!list.length">没有匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
  import Bscroll from 'better-scroll'
  import { mapMutations } from 'vuex'

  export default {
    name: 'CitySearch',
    data () {
      return {
        keyword: '',
        list: [],
        timer: null
      }
    },
    props: {
      cities: Object
    },
    methods: {
      handleCityClick (city) {
        // this.$store.commit('changeCity', city)
        this.changeCity(city)
        this.$router.push('/')
      },
      ...mapMutations(['changeCity'])
    },
    watch: {
      keyword () {
        if (this.timer) {
          clearTimeout(this.timer)
        }
        if (!this.keyword) {
          this.list = []
          return
        }
        this.timer = setTimeout(() => {
          const result = []
          for (let i in this.cities) {
            this.cities[i].forEach((value) => {
              if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                result.push(value)
              }
            })
          }
          this.list = result
        }, 100)
      }
    },
    mounted () {
      this.scroll = new Bscroll(this.$refs.search, {mouseWheel: true, click: true, tap: true})
    }
  }
</script>

<style lang="stylus" scoped>
  @import "~styles/varibles.styl"
  .search
    height .72rem
    padding 0 .1rem
    background $bgColor

    .search-input
      box-sizing border-box
      width 100%
      height .62rem
      padding 0 .5rem
      line-height .62rem
      text-align center
      border-radius .06rem
      color #666
  .search-content
    overflow hidden
    z-index 1
    position absolute
    top 1.58rem
    left 0
    right 0
    bottom 0
    background white
    .search-item
      height .4rem
      background white
</style>
